Pipe mold and flask



2 Sheets-Sheet 1.

(No Model.)

' H.-H. FISHER.

PIPE MOLD AND FLASK.

No. 300,239. Patented June 10, 1884.

d mm; a m; w www 4 w 11 H a f w h 1 J H m A W fi w L i w L E F B B G wmvA him N. PETERS. Pnom-uum mr. Washington. ac.

(No Model.)

2 Sheets-Sheet 2 H. H. FISHER.

PIPE MOLD AND FLASK.

Patented June 10, 1884. Ffd- N. VETEHS. Phunrunq n m. mun m". n. z;

UNITE STATES PATENT -rricn.

HIRAM H. FISHER, OF ALLENTOWN, PENNSYLVANIA.

PlPE MOLD AND FLASK.

SPECIFICATION forming part of Letters Patent No. 300,239, dated June 10,1884.

Application filed March 15, 1884,

To all whom it may concern.

Be it known that I, HIRAM H. FrsHnR, a

- citizen of the United States, residing in Allentown, Leliigh county,Pennsylvania, have invented certain Improvements in Pipe Molds andFlasks, of which the following is a specification.

My invention relates to improvements in the construction of flaskswherein to form molds for cast-iron pipes; and the main object of myimprovements, which are fully described hereinafter, is to affordfacilities for the ready detaching of one half of the flask from theother when the casting has to be removed from the mold, and for theready attaching of the removable half of the flask to the fixed part ofthe same, preparatory to forming a mold.

In the accompanying drawings, Figure 1, Sheet 1, is a side view ofone'of the pipe-molding flasks; Fig. 2, a front view of the upperportion of the same; Fig. 3, a side view of parts of the flask drawn toan enlarged scale; Fig. 4, Sheet 2, a sectional plan on the line 1 2,Fig. 3, of two adjoining flasks; Fig. 5, a sectional plan on the line 34, Fig. 3, showing the front parts of two flasks detached from the fixedparts; Figs. 6 and 7, vertical sections of lower portion of a flask andsupporting-base; and Fig. 8 is a sectional view of one end of a castpipe.

A and A are the two parts of the flask, the former being attached to thewall 13, and the latter being removable from the part A. Asupporting-base, D, for each flask has two projections, (Z (Z, which fltinto notches in a rib, b, on a plate, E, built in the wall 13, a lip, a,on each projection d, overlapping the rib b.0f

the said plate; or the supporting-base may be otherwise so adapted tothe plate E that the former cannot be moved outward or laterally on thelatter. The part A only of the flask is boltcdtothesupporting-base.Another-plate, F, is built into the wall, andto this plate is bolted orotherwise secured the part A of the flask, near its upper end, a log,0', at the rear of this flask, extending beneath an intermediate plate,G, also built into the wall, and thus serving to prevent the part A ofthe flask and the base D from being raised when the pattern is beingforcibly removed from the mold.

On referring to Fig. 2 it will be seen that shoulders at m are formed onthe part A of the (No model.)

l flask-one shoulder on each flange wfor bear ing on the lugs n a, oneon each side of the part A of the flask. I prefer that these lugs, eachprovided with a projection, a, shall constitute the sole support of thepart A of the flask, in which case the lower end of ,the'latter will befree from contact with the base D. In adjusting the part A of the flaskto its place it is lowered until its shoulders m in bear on the lugs a aof the part A, then released from v the tackle to which it wassuspended, then pushed against the said part- A of the flask, andfinally secured thereto in the manner about to be described, theprojections n of the lugs serving no other purpose than that of'preventing the accidental escaping from the logs of the part A of theflask when first released from the tackle, and before it is adjusted andsecured to the part A.

To the flanges w of the fixed part A of the flask are secured, atsuitable distances apart, as shown in Fig. 1, brackets I, and to thebrackets are pivoted arms H, having inclined shoulders t, which, whenthe arms are depressed, bear against the inclined or slightly-roundedribs 16, either cast on the flanges w of the part A of the flask, orattached thereto, as shown in the drawings, so that on striking theouter ends of the said arms H downward they will tend to force theremovable part A of the flask against the fixed portion, this part beingreleased when the arms have been struck up and are clear of the ribs 15.

On referring to Fig. 1 it will be seen that the part A of the flask issecured to the part A by arms H at six points, there being sixsecuringarms on each side of the flask, the length of which, however,will determine the number of releasing-arms.

It should be stated here that a number of flasks are arranged in a rowadjoining the wall B, two only of therow being shown in the plan view,Fig. 4, on reference towhioh itwill be observed that each arm H servesto confine the flanges of two flasks, and this plan may be adoptedthrough the entire row of flasks, excepting, of course, the two endflasks, one set of pivoted arms being devoted to the outer flanges onlyof each end flask, one of which is shown on the left in Fig. 2. Theremay, however, be a set of confining pivoted arms for each pair offlanges of each flask. It

' is immaterial whether the retaining-arms are pivoted directly to thefixed part of the flasks or to brackets I.

Referring to the sectional views, Figs. 6 and 7, the base D of the flaskhas a central opening, into which may be fitted either of the removablerings M or N; The ring M, Fig. 6,

I forming the rib on the pipe forms no part of my present invention, asthe interchangeable rings M and N and the manner of lockingand releasingthe same are shown in Patent No. 185,904, granted to me January 2,-1877,in

which, however, the removable rings were in.

an attachment to the flask, whereas in my present invention they areadapted to the base D.

Those familiar with the art will readily understand the facility withwhich the removable'parts A of a row of flasks may be disconnected fromthe fixed portions by striking upthe pivoted retaining-arms H when itbecomes necessary to remove the pipes which have been cast inthe severalmolds.

I claim as my invention 1." The combination of the part A of apipemolding flask and'the retaining-arms H, pivoted thereto, each armhaving an inclined shoulder or shoulders, I, with the part A of theflask and its-inclined or rounded ribs t, all'substantially as setforth.

2. The combination of two adjoining flasks, brackets I, secured to theflanges of the parts A of the two flasks, and arms I-I, pivoted to thesaid brackets, and having inclined shoulders t and inclined or roundedribs t, secured to the flanges of the removable portions A of the twoflasks, all substantially as set forth.

3. The combination of a two-part flask, one part, A, of which isattached to a wall, substantially as described, and has a lug, c, with aplate, G, built into the said wall and projecting over the lug, allsubstantially as specified.

4. The combination of the part A of the flask, attached to the wall andhaving lugs n, with the part A of the flask, having shoulders m m,adapted to rest on the lugs, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HIRAM H. FISHER.

Witnesses;

J OHN E. PARKER, HENRY HowsoN, Jr.

